The intel-microcode package [1] had an update in mid November 2019 (version "3.20191115"ish) with an entry apparently related to the symptoms seen in the kernel log you provided:
'Unexpected Page Faults in Guest Virtualization Environment (SKL-188, KBL-144, CFL-136 errata)' If you're running on Intel processors you might as well try that microcode update in the hypervisor (the guests can't update the microcode, afaik) and see if that helps. [1] https://launchpad.net/ubuntu/+source/intel-microcode -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1859099 Title: BUG: unable to handle kernel paging request at fffffe000010fff8 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1859099/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
